Heat-controlling mechanism for incubators, &amp;c.



P. KAISER. HEAT CONTROLLING MECHANISM FOR LNCUBATORS, &c.

APPLICATION FILED MAR. 15, I916- Patented July 11, 1916.

LLQUAO.

PETER KAISER, OF CROWN POINT, INDIANA, ASSIGNOR OF SIXTY-FIVE ONE- HUNDREDTHS TO CLAYTON D. BOOT, OF CROWN POINT, INDIANA.

HEAT-CONTROLLING MECHANISM FOR INCUBATOBS, 85c.

incense.

Application filed March 15, 1916.

To all whom it may conce n:

Be it known that 1, PETER KAIsEn, a citizen of the United States, and a resident of Crown Point, in the county of Lake and State of Indiana, have invented certain new and useful Improvements in Heat-ControL ling Mechanism for Incubators, &c., of which the following is a full, clear, and exact specification.

My invention is concerned with incubators, brooders, etc., and it is designed to produce heat-controlling mechanism for the same in which the thermostat connections and devices by which the temperature of the heating fluid is kept uniform shall be of the simplest possible nature, and hence very durable and not liable to get out of order.

To illustrate my invention, T have anneXed hereto a sheet of drawings, in which the same reference characters are used to designate identical parts in all the figures, of which,-

Figure 1 is a side elevation of a portion of an incubator having my invention applied thereto, as seen in section on the line 11 of Fig. 2; Fig. 2 is a side elevation of the same, with the incubator seen as in section on the line 2-2 of Fig. 1; and Fig. 3 is a top plan view as seen in section on the line 33 of Fig. 1, but with the boiler removed.

In carrying out my invention in its preferred form, as applied to an incubator, I employ the customary hollow casing 10, in which is mounted the egg tray 11, and which is provided with the preferably removable cover or top 12. The casing may be of any desired construction, and is suitably supported, as by the legs 13.

In the upper portion of the casing, where my invention is to be employed in connection with an incubator of the hot-water circulating type, T place a pair of pipes and 15*, which follow the outline of the hori- Zontal cross-section of the incubator near its walls, each of said pipes being connected at one end with the horizontal supply tube 16, and at the other end to the horizontal discharge tube 17 located below the same. These tubes 16 and 17 pass through a suitable aperture in the adjacent wall of the casing and are connected to the boiler 18, which has a plurality of vertical tubes 19 extending therethrough, so that the heat from the lamp can pass upward through Specification of Letters Patent.

Patented July 111, 1216.

Serial No. 84,286.

said tubes and heat the water in the boiler 18. The lamp 20 is of any desired construc tion, and is preferably supported from the bracket 21 secured on the bottom of the casing, and is provided with the chimney 22, which is preferably of metal, and has a transparent portion. 23 through which the height of the flame may be observed for regulating the same. Secured on the side of the casing is a bracket 24, which has a lower horizontal portion 25, which has projecting upwardly therefrom a short collar 26, which is preferably substantially square in horizontal cross section. When the lamp 20 is properly placed on the bracket, the top of the chimney 22 extends slightly upward into the opening formed by the bottom of the collar 26. Pivoted at the upper edge, preferably to one side of the center of the collar, as by the rod 27, is a swinging flue 28, which is preferably rectangular in cross section, and tapers slightly from the bottom to the top, the bottom fitting over the top of the collar 26 with suflicient play so that it is free to turn from the full-line to the dotted-line position shown in Fig. 1. Secured on the horizontal flange 29, projecting outwardly from the top of the bracket 24, is the seat 30 for the boiler 18, which seat preferably takes the form of a hollow, rectangular, inverted, truncated cone, formed with a flange 31 on the right-hand side thereof, which serves as a stop for the flue 28 when it is in its vertical position, in which the heat from the lamp is all directed up through the tubes 19 of the boiler 18. Associated with this seat 30, I prefer ably employ a passage 32, which is adapted to cooperate with the flue 28 when it is swung to the dotted-line position, in which a stop surface, preferably consisting of the left-hand side of the top of the fine 28, engages with the flange 34 projectingdownward from the bottom of the passage 32 and limits the movement of the flue in that direction. The seat 30 and the portion 25 of the bracket 24 are preferably connected by the brace rod 33.

The movement of the flue is controlled its by the thermostat disks 35, which are sup- 71% ported on the bracket 36 secured on the interior of the casing 10 above the egg tray.

Pivoted on the vertical arm 37 of the bracket stat disks 35. The outer end of this lever 38 projects through the vertical slot 41 in the casing, and has extending through an aperture in itsouter end the link 42, the effective length of which is controlled by the set nut 43 screwed on the upper end thereof, which preferably has an annular groove'cooperating with the aperture in the end of the lever 38, so that the lever is adjusted and held simply by turning the nut 43. The lower end of the link 42 is pivoted to the bracket 44 secured to the adjacent side of the flue 28, and a weight 45 to counterbalance the weight of the flue 28 is preferably held by a bend in the link 42.

The operation of the device will be readily apparent. Assuming that the apparatus is being started up with the temperature below the 103 for which it is set, the flue 28 will be in the full-line position shown, and the lever 38 will not tend to tilt it. When the temperature passes the 103 mark, the expansion of the thermostat disks 35 will cause them to raise the overlying lever, and thus lift the outer end of the lever 38, raising the link 42, and tilting the flue 28, say to the dotted-line position shown in Fig. 1, in which all the heat from the lamp is deflected away from the boiler 18, and the temperature of the circulating water is allowed to fall. When the temperature of the interior of the casing falls below the 103, the lever 38 falls, and the weight 45 tilts the flue 28. back to the vertical fullline position.

While I have shown and described my invention as embodied in the form which I at present consider best adapted to carry out'its purposes, it will be understood that it is capable of modifications, and that I do not desire to be limited in the interpretation of the following claims except as may be necessitated by the state of the prior art.

I am aware ofthe prior patents to Foster,

No. 595,381, and Leas et al., No. 1,085,273,

and do not claim the structures therein shown and described.

What I do claim as new, and desire to secure by States, is:

1. In a device of the class described, the combination with a casing having heat-distributing appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a stationary chimney on the lamp, surrounding the burner, a stationary collar supported from the casing having the chimney open ing into its bottom, a swinging flue pivoted near the top of the collar and overlapping the same to make a joint. in all positions, a heat-applying member above the swinging flue having heat-utilizing passages extend ing therethrough, and link and lever connections from the thermostat element to the Letters Patent ofl the United the top of the collar and overlapping the same to make a joint in all positions, a heatapplying member above the flue having heatutilizing passages extending therethrough, a bracket support for the thermostat element within the casing, a single lever fulcrumed on the bracket and cooperating with the free side of the thermostat element and having its load arm extending outside of the casing, and a link extending from the load arm and connected to the flue to one side i of its fulcrum.

3. In a device of the class described, the combination with a casing having heat-distributing appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a stationary chimney on the lamp surrounding its burner, a stationary collar supported from the casing having the chimney opening into its bottom, a swinging flue pivoted near the top of the collar and overlapping the same to make a joint in all positions, a heatapplying member above the flue having heat utilizing passages extending therethrough, a bracket support for the thermostat element within the casing, a single lever fulcrumed on the bracket and cooperating with the free side of the thermostat element and having its load arm extending outside of the casing, a link extending from the load arm and connected to the flue to one side of its fulcrum, and a counterbalance weight for the flue tending to hold it in its heating position. a

4. In a device of the class described, the combination with a casing having heat-distributing appliances therein and a thermostat element fixedly supported therein, of a lamp supported outside of the casing, a stationary chimney on the lamp surrounding its burner, a stationary collar supported from the casing having the chimney opening into its bottom, a swinging flue pivoted near the top of the collar and overlapping the same to make a joint in all positions, a heat-applying member above the flue having heatload arm extending outside of the casing, a In Witness whereof, I have hereunto set link connecting the lever and flue, a counmy hand and affixed my seal this 3rd day ter-balance Weight on the link, and means of March A. D. 1916.

for adjusting the effective length of the link, PETER KAISER. [1,. s.] 5 consisting 01": a nut threaded on the upper Witnesses:

end thereof and held to turn in the outer CLAYTON D. R001,

end of the lever through Which it passes. MARTIN J. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0. 

